This paragraph is about what GPS is and what GPS does.GPS is a handy little tool.Some are as small as a cell phone

Marshall Brain said:

A GPS receiver can help you
find where you are, anywhere on earth as long as you have a clear enough view
of the sky. If your GPS receiver can get signals from 3 or more satellites,
it can figure out where you are by doing some fancy math called
trilateration.

The Invention of the GPS

This paragraph is about the invention of the GPS. Allison K.
Brown said that

In the early 1970's, the
military began developing GPS. It became fully operational in 1995.

The army invented GPS. Soldiers kept getting lost. So,
theyinvented something that
would identify where on earth you were.

This paragraph is about the GPS Satellites

Digital Graphic Research Corporation taught that,

“A GPS can get lost
if it can't hear the tunes. Radio waves travel in straight lines, and they
don't pass through metal or rock easily. So in a tunnel, or downtown
surrounded by tall buildings, or even under heavy tree cover, a GPS can lose
its position.”

Conclusion

In conclusion, If you never want to be scared by getting
lost, be sure to have a GPS. I hope you enjoyed learning about GPS.I know I enjoyed learning about what
GPS is and what GPS does.Always
remember the invention of the GPS and GPS satellites